Practice Test | Kullabs.com
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  • Non-metals are ______ conductor of electricity or heat.

    Good
    Bad
    Partial
    Perfect
  • Which one is not the ore of silicon?

    Dolmite
    Mica
    Feldspar
    Silica
  • Which one is not the ore of sulphur?

    Quartz
    Gypsum
    Mica
    Dolmite
  • Atomic no. of sulphur is ______.

    18
    17
    16
    15
  • Atomic no. of silicon is ______.

    16
    18
    15
    14
  • Which one of the following is the most abundant electro-positive element in the earth s crust?

    Iron
    Silicon
    Calcium
    Phosphorous
  • Silicon is a _____.

    Non-metal
    Semi-metal
    Metalloid
    Metal
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